Abstract: absorption spectra for size-selected Hg$-n$/$+$PLU$/ and Hg$-n$/$+$PLU$PLU$/ clusters show an abrupt transition to a collective, plasmon-like absorption as a function of increasing cluster size. The position of the one plasmon peak as well as the width of the plasmon peak is studied in detail. A temperature dependence is conjectured for the width. A strong influence of electronic correlations on the cluster size dependence of the oscillator strength is observed. !7
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机译：摘要：大小选择的Hg $ -n $ / $ + $ PLU $ /和Hg $ -n $ / $ + $ PLU $ PLU $ /团簇的吸收光谱显示出突然转变为集体的等离激元样吸收增加簇大小的功能。详细研究了一个等离激元峰的位置以及等离激元峰的宽度。推测温度对宽度的依赖性。观察到电子相关性对振子强度的簇大小依赖性的强烈影响。 ！7
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